The Tangent Surface of a rational Algebraic Space Curve.
Heinz Oberheim (1990)
Manuscripta mathematica
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Heinz Oberheim (1990)
Manuscripta mathematica
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M., Lazarsfeld, R. Green (1987)
Inventiones mathematicae
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M. Andreatta, E. Ballico (1988)
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Obradović, Ratko (1999)
Novi Sad Journal of Mathematics
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Caryn Werner (1994)
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Luis Giraldo, Ignacio Sols (1998)
Collectanea Mathematica
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Let S be a ruled surface in P3 with no multiple generators. Let d and q be nonnegative integers. In this paper we determine which pairs (d,q) correspond to the degree and irregularity of a ruled surface, by considering these surfaces as curves in a smooth quadric hypersurface in P5.
Adam Logan (2010)
Acta Arithmetica
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G. Lucca (2003)
Visual Mathematics
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Ingrid Bauer (1995)
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Robin Hartshorne (2004)
Collectanea Mathematica
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We characterize the postulation character of arithmetically Gorenstein curves in P. We give conditions under which the curve can be realized in the form mH - K on some ACM surface. Finally, we complement a theorem by Watanabe by showing that any general arithmetically Gorenstein curve in P with arbitrary fixed postulation character can be obtained from a line by a series of ascending complete-intersection biliaisons.
Brakke, Kenneth A. (1992)
Experimental Mathematics
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Angelo Felice Lopez, Gian P. Pirola (1995)
Mathematische Zeitschrift
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A. Szücs, B. Csikós (1995)
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